$ egrep -i 'part of the ui' .xchat2/xchatlogs/FreeNode-#css.log 
2006 Jun 22 00:44:15 <reisio>	nandan: that's part of the UI, so you can't, or at least shouldn't
2007 Aug 20 04:44:16 <reisio>	that's part of the UI
2007 Nov 26 01:40:31 <reisio>	Blackhawk5193: part of the UI
2007 Dec 06 19:37:28 <reisio>	victori: sounds like part of the UI, no?
2008 Jan 20 17:07:56 <reisio>	carpet_the_walls: don't do that, the outline is part of the UI
2009 Jun 15 21:36:45 <reisio>	kaseano: yes, but they're part of the UI, so you should leave them alone